Holocene δ¹⁸O diatom from ODP Hole 178-1098A ...

• Main Authors: Pike, Jennifer, Swann, George E A, Leng, Melanie J, Snelling, Andrea M
• Format: Dataset
• Language: English
• Published: PANGAEA 2013
• Subjects: Sample code/label; AGE; Laboratory code/label; Diatoms, δ18O; Drilling/drill rig; DSDP/ODP/IODP sample designation; Mass spectrometer, Finnigan, MAT 253; Leg178; Joides Resolution; Ocean Drilling Program ODP; Antarc*; Antarctic; Antarctic Peninsula
• Online Access: https://dx.doi.org/10.1594/pangaea.857260; https://doi.pangaea.de/10.1594/PANGAEA.857260

The causes for rising temperatures along the Antarctic Peninsula during the late Holocene have been debated, particularly in light of instrumental records of warming over the past decades (Russell and McGregor, 2010, doi:10.1007/s10584-009-9673-4). Suggested mechanisms range from upwelling of warm deep waters onto the continental shelf in response to variations in the westerly winds (Bentley et al., 2009, doi:10.1177/0959683608096603), to an influence of El Niño-Southern Oscillation on sea surface temperatures (Shevenell et al., 2011, doi:10.1038/nature09751). Here, we present a record of Holocene glacial ice discharge, derived from the oxygen isotope composition of marine diatoms from Palmer Deep along the west Antarctic Peninsula continental margin. We assess atmospheric versus oceanic influences on glacial discharge at this location, using analyses of diatom geochemistry to reconstruct atmospherically forced glacial ice discharge and diatom assemblage (Taylor and Sjunneskog, 2002, ... : Supplement to: Pike, Jennifer; Swann, George E A; Leng, Melanie J; Snelling, Andrea M (2013): Glacial discharge along the west Antarctic Peninsula during the Holocene. Nature Geoscience, 6(3), 199-202 ...